JP2003205979A - System comprising refill-cartridge of stick - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system comprising both of a stick to easily refill a product lump to an adhesive stick having a spindle with a screw thread and a refill-cartridge. <P>SOLUTION: The system comprises the stick which has a spindle with a screw thread at the one side of the bottom and a holder having a cut-nut and a stick having a plunger with the means of the spindle with the screw thread at the other side, and the refill-cartridge which contains an extensible formed material of the product lump and is made to conform to the internal volume of the holder as well as the internal shape and has a hole bearing the spindle with the screw thread concentrically with a long axis. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD AND PRIOR ART The present invention relates to
Releases the product by applying to the surface, such as deodorant sticks, adhesive sticks, lipsticks, release sticks, shaving soap sticks or color sticks, having a solid bottom and one end A holder having an opening in the bottom configured to have a threaded spindle on one side of the bottom and a manually operated knurled nut on the other side of the bottom outside the holder. By means of which a stick extending over the entire long axis of the holder is mounted in the opening so that it can rotate around the long axis of the holder, and-a deodorant stick, an adhesive stick, a lipstick, a release agent. Housed in a holder such as a stick, shaving soap stick or color stick stick lump,
A plunger for applying a product mass, which is preferably malleable, adapted to be movable in the length direction of the holder by means of threaded spindle means which engages a threaded hole passing through the plunger. A method of refilling a stick comprising a plunger mounted so that it does not rotate in and a closure cap, which is, if desired, configured to be pressed onto the upper edge of the holder, comprising a threaded spindle Accept,
A product mass that is provided with holes, preferably blind holes, that are concentric with the major axis to fit the internal volume and shape of the holder (designed to accommodate the product mass) and is preferably extensible. The method for inserting the molded article of 1. into the holder from the open end of the holder.

Further, the present invention has a structure which is closed by a cap if necessary, and includes a holder having an opening at least at one end, and is used for deodorant, adhesive, lipstick, peeling agent, shaving Deodorant sticks contained in a holder, such as a soap or colorant stick mass, and comprising a plunger designed to be axially moveable over the entire length of the holder for applying a preferably malleable product mass. A method of making a refill cartridge for a stick, such as an adhesive stick, a lipstick, a release stick, a shaving soap stick or a color stick, which releases a product when applied to a surface, the plunger comprising: If necessary, place it on the bottom of the mold, and then place product blocks in the holder (designed so that each product block fits Of a product mass that is preferably malleable after pouring into a mold and optionally a plunger that has been adapted to its internal volume and shape and, after solidification, forms the main part of the refill cartridge. The present invention relates to a manufacturing method in which a molded product is taken out of a mold.

Further, the present invention is a system of sticks and refill cartridges, wherein the sticks include deodorant sticks, adhesive sticks, lipsticks, stripper sticks, shaving soap sticks or colorant sticks, etc. Releasing product by applying to the surface, -a holder having a solid bottom and an opening at one end, having a threaded spindle on one side of the bottom, and a holder The stick, which extends across the long axis of the holder, is configured to rotate around the long axis of the holder by being configured with a knurled nut that is manually operated on the other side of the bottom on the outside of the Holder attached to the part, and-deodorant stick, adhesive stick, lipstick Stored in a holder such as a stick, stripper stick, shaving soap stick or color stick stick mass,
A plunger for applying a product mass, which is preferably malleable, adapted to be movable in the length direction of the holder by means of threaded spindle means which engages a threaded hole passing through the plunger. The refill cartridge consists of a plunger that is mounted so that it does not rotate in and a closure cap that is configured to-if desired-is pressed into the upper edge of the holder, and the refill cartridge receives a threaded spindle and a long shaft. Concentric holes,
A system, preferably provided with blind holes, adapted to the internal volume and internal shape of the holder (designed to accommodate the product mass) and comprising a molded product mass, which is preferably compliant. Regarding

Sticks which release the product upon application to the surface, for example deodorant sticks, adhesive sticks, lipsticks, release sticks, shaving soap sticks or color sticks, if desired It is designed to be sealed by a cap, comprises a holder with an opening at one end, and comprises a plunger designed to be axially movable over the entire length of the holder, fitted (housed) in the holder, preferably Sticks that apply product mass that is malleable
Many things are already known. These known sticks generally have the disadvantage that they cannot be refilled.

For example, the adhesive sticks known from the prior art are exhausted after the initial adhesive filling has been exhausted, although in general the adhesive stick is mechanically still fully functional. It must be discarded after or after the adhesive has dried. Therefore, known sticks and adhesive sticks are a significant source of environmental pollution as plastic waste. Furthermore, new materials (plastics) must always be used when manufacturing new sticks, which has the adverse effect of increasing production costs, apart from manufacturing costs. And consumers will always buy a brand new stick.

A method of the kind described in the opening paragraph for refilling a stick which releases a product by applying it to a surface and such a refill cartridge is GB-
Known from A-246,657. This document discloses a shaving soap dispenser designed to dispense shaving soap with a spindle driven disk and refill it with a shaving soap stick having blind holes. To refill the dispenser, use a stick for shaving soap with blind holes,
Push it into the dispenser housing with the spindle. This refill method is not suitable for sticking soft, malleable products, such as adhesive sticks. The reason is that it can even be deformed or broken when pushing the product by hand, so
This is because it can no longer be inserted cleanly and accurately into the stick holder.

A method of the type described at the outset for producing a refill cartridge for a stick which releases a product by applying it to a surface is described in US Pat.
Known from No. 753,991. In this document, a lipstick compound is poured into a mold, a ball-shaped plunger is placed therein, and the compound is solidified, and then a lipstick molded product having a plunger at one end is lipstick molded. Insert into the holder and refill,
A method of making a lipstick refill is disclosed. To protect the lipstick molding, it is surrounded by a tube that is removed as the molding is pulled into the lipstick holder. This type of lipstick refill cartridge is DE-B-
It is also known from 1003411 and FR-A-1205370. These known refill cartridges are less suitable for refilling sticks with threaded spindles. The reason is that these documents disclose, on the one hand, a cup-shaped plunger with a continuous bottom into which a threaded spindle cannot be inserted, and on the other hand a stick formulation into a tubular stick holder. Because it does not disclose any means to prevent the refill from breaking, cracking or expanding when the threaded spindle enters the refill formulation during the refilling process of pulling in. is there.

[0008]

The problem to be solved by the invention is to provide an improved possibility for refilling a product mass into a stick comprising a threaded spindle.

[0009]

SUMMARY OF THE INVENTION In a refilling method of the kind described at the outset, the inventive means for solving the problem consists in a hole or blind hole which is aligned to receive a threaded spindle. Inserting the molded part with the holder into the holder, pulling the molded part to the bottom of the holder by moving the knurled nut, and the diameter of the hole or blind hole is that the threaded spindle enters the hole or blind hole At this time, it is characterized in that it is provided so as to slightly cut the product block.

In the case of refilling, the molded part formed with holes or blind holes is placed in the holder, so that the product to be replaced by the threaded spindle during the introduction of the molded part. There are few, if any, lumps, so there is no need to provide a space inside the stick or holder where product lumps can leak out. In addition, the stick does not become dirty as no excess deposits of product mass flow out of the stick. The diameter of the hole or blind hole is dimensioned so that the threaded spindle makes a slight cut into the product mass as it enters the hole or blind hole, so that when loading into the holder, the adhesive Can be almost prevented from flowing out, and the molded product can be prevented from expanding in the radial direction.

On the other hand, however, the fact that the threaded spindle slightly cuts into the product block means that the mechanical force is transmitted to the product block from the side of the thread and the product block is moved when the knurled nut is moved. It means to be automatically pulled into the stick holder. Therefore, even in the case of sticks with a threaded spindle, it is no longer necessary to manually insert the product mass into the holder, and therefore the product mass is no longer deformed or broken.

In the embodiment of the present invention of a molded article having a plunger at one end, described below, the threaded spindle slightly cuts into the product mass so that the product mass will be drawn when the molded product is drawn into the holder. It supports the advancement driven by the plunger and prevents the product mass from separating from the plunger.

A further advantage of the present invention is the aspect described below, in which the molded part is surrounded by the tube and is drawn from the tube into the holder.

Accordingly, the present invention comprises moldings of each product mass that are preferably malleable to match the internal volume and internal shape (designed to accommodate each product mass) of the holder. Starting from the basic idea of providing the user with a stick of the kind mentioned above, in which the molded part can be drawn into the holder through the opening in the end. After the original filled part is exhausted, the consumer can refill the stick. Consumers
You no longer have to buy a brand new stick. By reusing important non-disposable parts of the stick, the amount of waste, typically plastic waste, is reduced (since sticks are usually made of plastic). Producers no longer have to distribute each stick-filled product, including the complete stick mechanism,
It can also reduce plastic consumption.

In one embodiment of the present invention, a tube containing a molded article that fits into the tube is mounted in a holder, followed by retracting the molded article into the holder, pulling the tube completely out of the molded article, and The final removal makes it easier to refill the stick. This prevents the sticks from becoming soiled during refilling, as it prevents the soft, plastic product mass, especially if it is an adhesive stick, from partially peeling off at the leading edge portion of the stick holder.

In another aspect of the invention, where the molded article includes a plunger, a convenient refill that does not expose a soft, plastic mass when the molded article is loaded into a stick is provided. You can also get it. For this reason, another aspect of the invention is that the plunger is a cup-shaped plunger and in order to refill, first the plunger of the stick is removed from the holder not holding the product and the screw hole is opened. It is characterized in that the molded product having the plunger at one end is attached with the screw hole positioned on the threaded spindle and the knurled nut is moved to draw the plunger together with the product mass to the bottom of the holder.

Refilling of the stick can be performed particularly conveniently when the molded product of each product mass, which is preferably malleable, is surrounded by a tube and a plunger is provided at one end. Another aspect of the invention therefor is characterized in that the plunger is loaded in a holder whose upper edge is surrounded by a tube. Basically, each mass of product, which is preferably malleable, is filled into a cylindrical holder whose bottom is formed by the plunger, with the upper end of the outer surface of the plunger being surrounded by the holder. For example, when screwing a screw hole of a plunger into a threaded spindle, and
When the knurled nut is rotated to pull the plunger with the product mass to the bottom of the holder, the tube is subsequently withdrawn from the molding, so that it can be removed simultaneously and finally. The dimensions of the tube are
The setting must be such that when the plunger is screwed in, the front end of the tube abuts the opposite end of the holder wall, which causes the tube to push out the molding.

In the first-mentioned method of manufacturing a refill cartridge of the type described above, the means of the present invention for solving the above-mentioned problems is to provide a stick extending along at least a part of the mold with a long axis at the bottom of the mold. Concentric with a hole or blind hole in the product mass and when the refill cartridge is inserted into the holder of a stick with a threaded spindle, the threaded spindle enters the hole or blind hole. However, it is characterized in that the diameter of the hole or blind hole is set so as to slightly cut into the product mass. Therefore, in a very simple manner, the invention provides a refill cartridge which can be mounted on an empty stick and thus refilled with the same simple procedure.

Another aspect of the method is to cover at least a portion of the mold, particularly to locate the plunger at the bottom of the mold and optionally to provide holes or blind holes in the molded article during the manufacturing process. An extending stick is concentric with the long axis at the bottom of the mold to receive a threaded hole in the plunger and / or to provide a hole or blind hole in the product mass.

In another embodiment of the production method of the present invention,
It is characterized in that a screw hole penetrating through the center is provided, and a plunger for receiving a stick in the screw hole is inserted into the bottom of the mold. In this way, the plunger and the molding of the product mass, which is preferably malleable, form a single unit which advantageously allows the stick to be drawn into the holder. This can reduce the risk of the plunger separating from the product mass, especially during the charging of the molding.

In a particularly advantageous embodiment of the invention, in order to produce a refill cartridge in which a tube of a preferably malleable product mass is surrounded by a tube, the mold is expanded to fit the tube, The method is characterized by loading the tube into the mold with the outer surface of the tube adjacent to the inner surface of the mold prior to pouring the product mass.

In another particularly advantageous embodiment of the process according to the invention, the stick is an adhesive stick and the molding comprises a soft, malleable adhesive formulation.

The stick and refill of the type mentioned at the beginning
In a system consisting of cartridges, the means of the present invention for solving the above-mentioned problem is that when a refill cartridge is loaded into a holder, a threaded spindle enters the hole or blind hole and slightly It is characterized in that the diameter of the hole or the blind hole is adjusted so as to make a cut. The molded article, which is preferably malleable, can be fitted and drawn into the stick through the opening at the end of the holder. The stick can be refilled in this way. There is no need to discard the stick after using up the product that was originally filled.

In order to be able to load the refill cartridge into a stick with a threaded threaded spindle without the risk of soiling the stick holder at all, a hole concentric with the longitudinal axis is formed in the molded part. Or provide blind holes.

To facilitate insertion of the refill cartridge into the stick holder, another aspect of the invention is that the plunger is a cup-shaped plunger formed with a central threaded hole. The molded article has a plunger at the end.

In order to prevent air from being taken into the stick holder when the refill cartridge is loaded in the holder, a further embodiment of the refill cartridge of the present invention is that the outer periphery of the molded product is in the longitudinal direction. The groove or notch is provided.

As already mentioned in connection with the method of manufacture and the method of refilling the stick, according to another aspect of the invention, refilling of the stick is facilitated when the molded article is placed in a tube. be able to.

Another aspect of the invention is a system characterized by a tube having a length adapted to the free inner holder height of the stick, an inner diameter adapted to the inner diameter of the holder and a bottom serving as the plunger of the stick, The upper edge of the plunger is surrounded by the tube.

As mentioned above, this refill cartridge encloses a mass of product, which is preferably malleable, and whose length corresponds substantially to the free internal height of the stick tube, but the internal height of the stick holder. Comprising a tube which may be only part of the length. Since the tube has an inner diameter that matches the inner diameter of the stick holder, the molded product can be drawn into the holder at the same time when the tube is removed. To use the refill cartridge, insert the part of the plunger that is not
Rotate the knurled nut and insert it into the holder until the threaded spindle engages the plunger screw hole. When the knurled nut is further rotated, the plunger is gradually pulled toward the bottom of the holder, and after inserting into the screw hole of the molded product, the tip of the threaded spindle simultaneously cuts the product mass while threading. Pull it into the cylinder with the same length. Continue turning the knurled nut until the plunger reaches the bottom of the holder. When this position is reached, the molded article has been sufficiently drawn from the tube so that the tube can be removed. The open end of the refilled stick holder can then be sealed with a cap as is known from the prior art. Regardless of whether the knurled nut is rotated to apply each product or refill the holder, the plastic parts are not subject to significant wear, and the refill process can be repeated indefinitely.

In order to prevent the product mass from drying out from the side facing the plunger, the screw holes can be closed by a (thin) membrane designed to break with a threaded spindle. The threaded holes in the plunger preferably have single or multiple threads.

Like all other parts, the threaded spindle of the stick can be made of inexpensive plastic, optionally with a particular flexibility. To facilitate the insertion of the spindle end into the threaded hole in the plunger of the refill cartridge, an insert aid cone is provided inside the bottom of the plunger.

The end of the tube opposite the plunger can also be blocked to prevent the product mass from drying. In this embodiment, for example, the tube can be formed into a cup shape in advance, and the preformed cup can be filled with the product block before the opening side of the cup is closed with the plunger.

As far as the tube dimensions are concerned, the only difficult factor is to fit the inner diameter to the holder. In contrast, the wall thickness of the tube (tube wall thickness) can basically be chosen according to need, but in order to save material it should be at least as thick as the wall thickness of the holder. is there.

Similarly, the tube can basically be formed of any material that retains its rigidity when retracting the molded article of the preferably compliant product mass. The tube can be made of plastic or coated paperboard. In contrast, the plunger is preferably made of plastic.

For easy insertion of the molded part into the holder, a central blind hole for the threaded spindle can be formed along the axis of the molded part. According to this aspect, the holder and the tube can have the same inner diameter. Instead of a blind hole, it is of course also possible to provide a hole through the molded part over the entire major axis. In order to facilitate the retraction of the molded part, it is preferred to form the tube, or rather the inner surface of the tube, in a slightly conical shape, the conical shape being up to 3 ° towards the opposite end of the plunger. Form the cone angle of.

In another aspect of the invention, the tube has a sleeve at one end that encloses the plunger at a distance such that the inner diameter of the sleeve presses the sleeve onto the upper portion of the outer surface of the holder. It's the size you can. Further, an annular stopper surface is provided on the inside of the sleeve for the front end of the holder. This not only ensures a safe mounting of the refill cartridge on the stick holder, but in particular ensures that the tube and holder of the refill cartridge are centered. Therefore, it is no longer necessary to exactly match the wall thickness of the holder and the tube.

The dimensions of the sleeve are such that the free end of the sleeve is
It is preferably flush with the bottom of the plunger or slightly protruding. In this way, when viewed in the axial direction, an annular space having a sufficient depth is formed between the inner surface of the sleeve and the outer surface of the plunger.

In a first embodiment, the sleeve and the tube are formed in one piece, in particular by injection molding, the cross-section is radially thickened at the connection between the sleeve and the tube, and an annular abutment against the front end of the cylinder is provided. Forming a surface. Alternatively, the tube and sleeve can be formed as two parts joined by a snap-in joint, which is preferably annular.

In another aspect of the invention, the plurality of bridges functioning as a site of artificially reduced strength, ie, when the plunger is retracted toward the bottom of the holder, causes the plunger and sleeve to move together. Can be combined. In this aspect, the plunger and sleeve can be formed as a unitary injection molded part with a tube if desired. Instead, by a drop-in or snap-in connection designed to break when the plunger is pulled towards the bottom of the holder, for example by forming a small drop-in protrusion or hook during the injection molding process. The plunger and sleeve can be joined together. These connections can also be separated from the sleeve after inserting the threaded spindle in the process of refilling.

The advantages described above with respect to the system, refill method and manufacturing method aspects are the same for either the manufacturing method, the system or the refill cartridge, even if they are described only with respect to one subject of the invention. It can also be applied.

[0041]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be further described with reference to the accompanying drawings, in which FIG. 1 is a side view of a refill cartridge, and FIG. 2 is a plan view of another embodiment of the refill cartridge. FIG. 3, FIG. 3 shows a molded product with a part of a mold, FIG.
5 is a partial cutaway and partial cross-sectional side view of an adhesive stick surrounded by a refill cartridge according to another embodiment of the refill cartridge. FIG. FIG. 3 is a side view / side sectional view of the example of embodiment.

The examples described below relate to adhesive sticks. Therefore, the stick is called an adhesive stick, and the product block is called an adhesive block.

Similarly, the product block is referred to as a deodorant stick block in the case of a deodorant stick, referred to as a lipstick block in the case of a lipstick, and a release agent stick block in the case of a release agent stick. Good, shaving soap sticks are called shaving soap stick lumps, and colored sticks are called colored stick lumps, that is, in general, each product lump is preferably malleable and has good plasticity. Have.

A refill cartridge, generally designated by the numeral 1 in FIG. 1, comprises a plastic, malleable adhesive mass 23.
It is composed of a cylindrical molded product 2. In the three-dimensional form the molded part 2 fits the internal volume (designed to fit the adhesive mass) and the internal shape of the holder, so that
The molded article 2 can be introduced into the holder of the adhesive stick in the direction of the arrow 3 and pulled completely into the holder. An example of such a stick is described below with reference to FIGS. In the simplest form,
The refill cartridge 1 is a smooth surfaced cylindrical molding 2.

FIG. 2 is a plan view of a refill cartridge 1a in which a vertical groove or notch 4 is provided on the outer periphery of a cylindrical molded product 2. When the molded product 2 is loaded into the holder, air can escape from the inside of the adhesive stick holder to the outside along the groove 4.

FIG. 3 shows a molded article 2 of a malleable adhesive mass 23 having a plunger at one end. FIG. 3 shows the molding 2 still in the mold 6 (partially shown) immediately after the injection of the adhesive mass 23, but the adhesive mass remains liquid during the manufacturing process and during curing. The plunger 5 has a cylindrical protrusion 7 in the center and is generally cup-shaped. On the inside of the plunger 5 and on the outside of the cylindrical projection 7, collars 8 and 9 projecting annularly are provided. These collars firmly anchor the adhesive mass 23 in the cup-shaped plunger securely so that when the molded product is loaded into the holder of the adhesive stick, the adhesive mass 23 tears, Prevents shearing.

FIG. 4 shows a molded article 2 of the spreadable adhesive mass 23.
However, another example of the embodiment of the refill cartridge 1c is shown, which has a plunger 11 at one end, which has a screw hole 10 at its center that penetrates the plunger 11 over its entire length.
Similar to the plunger of FIG. 3, the plunger 11 is also cup-shaped and is provided with a collar 12 protruding inwardly in an annular shape. The molded product 2 has blind holes 13 which are concentric with each other in the longitudinal direction.

The refill cartridges 1, 1a and 1c shown in FIGS. 1-4 are described below with reference to exemplary embodiments of the refill cartridges 1d and 1e.
It may be longitudinally enclosed by a tube (not shown).

Adhesive stick 14 shown in FIGS. 5 and 6.
Are known in principle from the prior art. It consists of a holder 15 with a closed bottom 16 on which the stick is mounted for rotation about its longitudinal axis by means of snap-in joints (not shown). The stick extends over the entire long axis of the holder and is provided with a threaded spindle 17 on one side of the snap-in joint and on the outside of the holder 15 on the other side of the snap-in joint. There is a knurled nut 18 which is manually operated. The plunger 19 is arranged and mounted in the length direction of the holder 15 by means of a threaded spindle 17 means. Since the refill cartridge is shown mounted in FIGS. 5 and 6, the sealing cap, which is typically designed to be pressed onto the upper edge of the holder, is not shown. This is a drop-in connection
It can be removably attached to the outside of the holder by means of 20 or threads or snap-in joint means.

At the bottom, the plunger 19 is provided with a threaded hole 21 designed to engage the threaded spindle 17. The plunger 19 forms the bottom of the refill cartridge 1d, otherwise the refill cartridge consists of a tube 22 whose lower rim occludes and / or surrounds the upper edge of the plunger. The upper end 22a of the tube can be closed to prevent the malleable adhesive mass 23 from drying out. Further, the bottom portion of the plunger of the refill cartridge 1d to be loaded may have a rupturable membrane 24 that closes the screw hole 21. A cone 25 provided inside the plunger bottom serves as an insertion aid. Further, the outer surface of the plunger 19 is provided with a groove-shaped recess 26 that expands in a triangular shape downwardly of the plunger along the long axis direction, which is formed by a rib 32 on the inner surface of the holder. Together, they prevent rotation of the plunger 19 when turning the knurled nut 18.

Another example of the mode is shown in FIG. 7, and this mode is the refill cartridge 1, 1a, 1c,
The main difference from 1d is that the sleeve 27 is modified and used. Like the tube 22, the sleeve 27 has a cylindrical shape and is connected to the tube 22 by, for example, an annular snap-in joint 28.
The sleeve 27 has an inner diameter 29 that allows it to be pressed onto the outside of the holder 15 (see FIGS. 5 and 6). When the holder 15 is slid and inserted into the annular gap 30 between the sleeve 27 and the plunger 19, the refill
The cartridge 1e will be securely attached and united with the adhesive stick 14.

In this case, the sleeve 27 is pushed into the holder 15 until the annular stopper surface 27a and the surface 15a of the holder 15 come into contact with each other (see FIG. 5).

The sleeve 27 can also be formed as an integral part of the tube 22. In that case, the tube 2
The thickness of the inner radial cross section is increased while forming an annular surface similar to the stop surface 27a near the connection between 2 and the sleeve 27.

The plunger 19 is connected to the sleeve 27 by a radially extending bridge 31, which bridge breaks during refill installation, ie when the plunger 19 moves towards the bottom 16 of the holder. The jar can be separated from the sleeve 27.
Particularly, in a mode in which the tube 22 and the sleeve 27 are formed as an integral part, the plunger 19 is detachable by a drop-in or snap-in connection.
It can be connected to integrally molded parts 22, 27 as described above. All parts can be injection molded,
It is even possible to manufacture in one step if all parts are one-piece or connectable to each other.

Refill cartridges 1, 1a, 1c,
The cross-sectional shape of 1d, 1e must of course be adapted to the cross-sectional shape of the holder 15 of the adhesive stick 14, for example it is even possible for the adhesive stick to be polygonal rather than cylindrical.

The diameter of the blind hole 13 is such that the threaded spindle 17 bites slightly into the adhesive mass 23 when entering the blind hole 13, and then the adhesive mass 23 is mounted on the holder 15. When entering, the expansion of the molded product 2 in the radial direction and the removal of the adhesive lump 23, if any, hardly occur.

In order to produce the molding 2 of the refill cartridges 1 and 1a, the adhesive mass, which remains liquid during the manufacturing process, of the holder 15 (designed to fit the adhesive mass) is used. Pouring into a mold 6 having a shape adapted to the internal volume and shape. The mold is metal,
It may be plastic or silicone rubber. It is preferable to integrate the mold with the cooling belt. The mold passes through the cooling zone until the adhesive mass 23 solidifies to form the molded article 2. In order to manufacture the refill cartridge 1, the molding used is in the form of a hollow cylinder with a solid bottom. In order to manufacture the refill cartridge 1a, the corresponding mold is further provided with ribs or bridges which extend in the lengthwise direction and project into the mold, forming the notches 4. Refill cartridge 1
In order to manufacture c, first the plunger 11 is loaded into the mold and subsequently the adhesive mass 23, which is still liquid, is injected into the plunger 11 and the mold 6. A pin extending at least partially in the length direction of the mold is provided at the bottom of the mold in advance so as to be concentric with the long axis, and receives the screw hole 10 of the plunger 11 to form the blind hole 13. The pin projects into the area of the molding 2 over the entire length of the blind hole 13, which is then determined by the threaded spindle 17 of the adhesive stick 14.
It corresponds to the length when it penetrates in. Also in this case, the plunger 11 is loaded into the mold, the screw hole 10 is positioned on the center pin, and then the liquid adhesive mass 23 is injected into the mold. After solidifying, the refill cartridge 1c is taken out from the mold.

When the refill cartridge or the adhesive molded product 2 is surrounded by the tube 22, first, the tube 22 is loaded into a mold, and if necessary, before the adhesive mass 23 is injected into the tube 22. Plunger 11 or 1
Push 9 into tube 22.

The manufacture of a refill cartridge with a tube 22 surrounding the molding 2 is carried out by means of a mold with a divergence in which the tube 22 can be clearly mounted over part of its length. The bottom of this mold is slightly lower than the lower edge of the opening, so that either the loading plunger or the inflowing adhesive mass can go deeper into the mold, resulting in a final refill. -In the cartridge, either the glue or the plunger protrudes beyond the tube and this area of the refill cartridge can first be loaded into the holder of the glue stick to be refilled with glue.

In the case of a metal mold which can be disassembled after the adhesive mass is solidified, a concave portion or a widened portion for accurately mounting the plunger 11 or 19 can be provided at the bottom of the mold. A protrusion can be formed at the end of the plunger between the outer diameter and the outer diameter of each molded article of malleable adhesive mass. This allows the plunger 1
When 9 is used as an insertion aid for manually inserting the refill cartridge into the adhesive stick holder, it reduces the risk of contacting the adhesive mass.

After removal of the molded part from the mold, the various refill cartridges can be packaged in conventional manner with film, paper or film / paper composites.
For example, bags with sealed rims, thermoformed parts, ground pulp or starch derivatives are possible. Several refill cartridges can also be individual packages that can be individually removed, eg, torn or torn.

The material to be packaged, for example a mold 6 provided with a plastic film, can be lined before the adhesive mass 23 is filled. In this case, the packaging material is a separation aid (auxiliary) that easily discharges the solidified product block from the mold 6.
Can be used as In this way, a ready-to-use refill cartridge can also be obtained. To that end, before the adhesive mass 23 is injected into the mold 6, as well as the plungers 11, 19 and / or the tube 2.
Prior to the optional charging of 2, the packaging material is preferably charged in such a way that it is in intimate contact with the inner surface of the mold, optionally together with the sleeve 27.

To refill the adhesive stick, the packaging material surrounding the individual refill cartridges is first completely or partially removed. Then, the unwrapped end of the refill cartridge, which is either part of the molded part 2 or the plunger, is mounted or inserted into the opening at the end of the adhesive stick holder 15 and subsequently the refill cartridge is held in the holder. Pull in 15 Adhesive stick 14 has a threaded spindle 17 that retracts the refill cartridge whenever the threads of threaded spindle 17 engage the threaded holes and / or blind holes 13 in the plunger. The following example describes how to refill the adhesive stick 14 shown in FIGS. 5 and 6. First, the plunger 19 of the refill cartridge 1d is gently pushed into the holder 15 until the tip 17a of the threaded spindle comes into contact with the membrane 24. Lightly move, rotating knurled nut 18 if desired, to puncture membrane 24 and push plunger 19 down until threaded spindle 17 engages threaded hole 21. Continue rotating the knurled nut 18 until the rim-side front surface 22b comes into contact with the opposing front surface 15a of the holder 15.
Further down. When the knurled nut 18 is rotated to further rotate the threaded spindle 17, the plunger 19 continues to be pulled down, while the threaded spindle 17 threads the blind hole 13 in the adhesive mass 23. While advancing, the molded product 2 is uniformly pulled downward. Since the position of the tube 22 with respect to the holder 15 does not change, the cylinder of the adhesive 23 finally becomes the tube 2
Completely deviating from 2. The length of the tube matches the height inside the holder, so that the free end face of the adhesive mass can be aligned with the upper edge of the holder 15, and thus the tube 2
2 can be completely empty. Adhesive stick 1
4 has been refilled and can be used again.

Other refill cartridges can similarly be retracted into each adhesive stick holder, with each refill cartridge subsequently aligned within the adhesive stick with the leading edge of the holder.

[Brief description of drawings]

FIG. 1 is a side view of a refill cartridge.

FIG. 2 is a plan view of another example aspect of a refill cartridge.

FIG. 3 shows an embodiment of a molded article with a part of a mold.

FIG. 4 illustrates another example aspect of a refill cartridge.

FIG. 5 is a partial cutaway and partial cross-sectional side view of an adhesive stick surrounded by a refill cartridge in an example embodiment.

FIG. 6 is a partial cutaway and partial cross-sectional side view of an adhesive stick surrounded by a refill cartridge according to another example embodiment.

FIG. 7 is a side / side cross-sectional view of another example aspect of a refill cartridge.

[Explanation of symbols]

1d ・ 1e refill cartridge, 2 molded products, 4 grooves, 6 molds, 7 cylindrical protrusions, 8 and 9 colors, 10 screw holes, 11 Plunger, 12 colors, 13 holes, 14 adhesive stick, 15 holders, 15a front end part, 16 bottom, 17 threaded spindle, 17a Threaded spindle tip, 18 knurled nuts, 19 Plunger, 19a Upper edge of plunger, 21 screw holes, 22 tubes, 22a tube top, 23 product chunks, 24 membranes, 25 cones, 26 recess, 27 sleeves, 27a annular inner stop surface, 28 annular snap-in joint, 29 inner diameter, 30 annular space, 31 bridge, 32 ribs.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Tilvin Rebgeus             Federal Republic of Germany Di-4000 Dusse             Rudolf, Valderleben Strasse             Number three (72) Inventor Gerhard Girenz             Federal Republic of Germany Di-5650 Solin             Gen, Diesel Strasse 80 (72) Inventor Klaus Traneris             Federal Republic of Germany Di-4330 Mule             Heim, Amselstra Ase 17 (72) Inventor Gerd-Rüdiger Reinfelda             -             Federal Republic of Germany Di-4005 Meabu             Sch 1, Im Bachgrund No. 21 (72) Inventor Joachim Franken             Federal Republic of Germany Di-4000 Dusse             Rudolf, Am Falder No. 20 (72) Inventor Hans Harum             Federal Republic of Germany Di-4690 Herne,             Castroper Straasse No. 34 F-term (reference) 3E014 AC02 AC04 AC08

Claims (2)

[Claims] 1. A deodorant stick, an adhesive stick,
A product, such as a lipstick, a stripper stick, a shaving soap stick or a colorant stick, which releases the product by applying it to the surface, -a holder having a solid bottom (16) and an opening at one end. (15) having a threaded spindle (17) on one side of the bottom (16) and manually operating the other side of the bottom (16) on the outside of the holder (15) A holder that is configured to have a stud nut (18) so that a stick extending over the long axis of the holder is mounted in the opening so that it can rotate around the long axis of the holder, and-deodorant Holder for adhesive sticks, adhesive sticks, lipsticks, release sticks, shaving soap sticks or color stick sticks etc. A plunger (19) housed within the (15) for applying a preferably malleable product mass (23), the thread engaging a screw hole (10, 21) extending through the plunger. A plunger that is configured to be movable in the length direction of the holder by the attached spindle means (17) and is attached so as not to rotate in the holder (15);
Optionally-a stick (14) comprising a closure cap adapted to be pressed onto the upper edge of the holder, as well as (designed to accommodate each mass of product in the holder (15). ) A product mass (23) adapted to the internal volume and shape and having a hole, preferably a blind hole (13), which is concentric with the major axis and which receives a threaded spindle (17) and which is preferably extensible. ) A refill cartridge (1, 1a, 1c, 1d, 1e) for the stick, comprising a molded part (2) of -When inserting the cartridges (1, 1a, 1c, 1d, 1e), the threaded spindle (17) has holes or blind holes (1
A system characterized in that the diameter of the hole or blind hole (13) is set so as to slightly cut into the product block (23) while entering 3). 2. The plunger (11, 19) is a cup-shaped plunger, and the molded article (2) is provided with a screw hole (10, 21) passing through the center thereof. , 19) at the end.